Sea-groin.



No. 897,369. PATENTED SEPT. l, 1908'. J. A. HOWLAND 61: W. H. DE NYSE.

SBA GROIN.

APPLICATION FILED DBC.10, 1906.

2 SHEETS-SHEET l.

A TTU/NVE YS No. 897,369. PATENTED SEPT. l, 1908. I. A. HOWLAND 6L W. H.DE NYSE.

SEA GROIN.

AFPLICATION 'FILED DBG,10, 1906.

2 SHEETS-SHEET 2.

W W "E Mmmm@ A Tmp/VE YS UNFFEU @ll-kwil@ lfldliblll JESSE A. HOWLAND,OF SEA BRIGHT, AND WILLIAM H. DE NYSE, OF LONG BRANCH,

NEW JERSEY.

SE A-GROIN.

Specification of Letters Patent.

Patented Sept. l, lSOS.

Application filed December 10, 1906. Serial No. 347,061.

To all 107mm it may remera.

Be it known that we, Jnssn A. HowLANn, a resident ol Sea Bright, in theeounty of Monmouth and State of New Jersey, and WiLLiAM ll. Dn NYSE, aresident ot' Long Branch, in the eounty of Monmouth and State of NewJersey, both eitizens of the United States, have invented a new andlinproved Sea-Groin, ol wliieh the following is a full, clear, and exactdescription` The invention relates 'to hydraulie engineering, and itsobject is to y vide a new and improved sea groin or like structuredesigned for use along the eoast in harbors, rivers and other waterways, and arranged to *forni a perinainuit structure capable ofwithstanding the ravages ol the waves, teredos and othei` destructivecauses.

The invention eonsists of novel features and parts and eonibinalions ofthe saine, whieh will be more l'ully described h'ereinafter and thenpointed out in the elaiins.

A practical embodiment. of the invention is represented in the.accompanying drawings forming a part of t-liis speeilieation, iii whichsimilar characters ol' reference indicate eorresponding parts in all theviews.

Figure l is a plan view oi' the iinprovenient; Fig. 2 is a lar-e viewol' the saine, parts being broken out g Fig. 3 is a transverse sec tionof the saine; Fig. 4 is an enlarged seetional plan view of twointerloeked reinforced eonerete planks; Fig. 5 is a cross section of aniodilied forni of the improvement with false work for supporting theconcrete planks; Fig.

6 is a faee View of the saine, parts being broken out, and Fig. 7 is anenlarged seotional plan view of two iiiterlooked eonerete g planks.

The strueture illustrated in Figs. l, 2 and 3 consists of a woodensupport A for the planks B, inade ol' reinloreed concrete so to bepermanent and not .liable to the destruetive work of teredos and thelike. The

r support A consists of piles A driven into the possible. By thearrangement i above described the structure A is rendered perniae nentand the planks B are ol a length suflieient to extend a distanee downinto the bed of the sea, river or other water Way, so as to forni aprotection against the destructive aetion of the waves, at the sainetiine the planks are not liable to be destroyed by the aetioii ofteredos.

ln making a plank ol' concrete, one side is provided with a tongue l5and the other side with a groove Bl, so that the tongue. of one plankreadily nts into the groove of the adliaeent plank to properly interlockthe planks with eaoh other. rihe body oll eonerete i'or eaeh ilank isreinfoi'eed in the diretl tion oi its length by nietallie rods B, andthe tongues B are. reinl'oreed by inetallio strips or plates B4, andsiinilar plates B5 are used for reinforcing the side walls of the4grooves B2. so as to renderthe tongues and grooves exeeert. ingly strongand durable. I

ln the structure illustrated in Figs. 5, (l and 7 the support E is inthe torni ol false work, and although it lirst supports the reinforcedeonerete planks F it is liable to destruction without, however7seriouslyr inipairing the usefulness oll the interlooked concrete p anksF. For this purpose the planks F are of a length approximatelyeorresponding to the piles lll, so that the planks F are driven aeonsiderahle distance down into the bottoni of the sea, river or otherwater way, to render the planks sedi-sustaining, and consequently theplanks reinain 'in position even after the wooden structure lll hasrotted away or is otherwise destroyed. As shown, the siringers E2, l aresecured lo the piles Fi by bolts G, and the planks F are secured to thestriiwH ers bybolts G. 'llie upper endsol the planks F are foi-ined withheads F resting on trie top of the uppermost sti-niger E2, and thecorners of the interloeked lanks are stilleiied and protected byinetallie eaps lil and ll, prefer ably in the forni of angle-irons,fastened by bolts or rivets lli to the heads F of the ilanks Thus by thearrangement described, tlie u per ends of the interleeked concrete plans are strongly stillened and protected, to prevent the saine lroinchipping oil.

loo

ln using the selllsustaining planks as above other side with aeorrespondinglysha edi dovetail groove F3, as will be readily un erser/,36e

stood by reference to Fig. 7. The plank -F is reinforced in thedirection of its length by metallic rods F47 and the tongue F2 is rein-.forced by a metallic plate F5, and the walls of the groove F3 arereinforced by `similar plates F, so as to render the interlocked planksF exceedingly strong and durable.

From the foregoing it will be seen that a structure as shown anddescribed is rendered ermanent by the use of interlocked reinorcedconcrete planks, not liable to the destructive action of waves, teredosand like causes.

In building the structure the spaced piles are driven down into the bedof the 'sea or water way,' and then the stringers are attached to thepiles to form the wooden support for the concrete planks. The latter arethen driven down into the bed of the sea or Water way alongthe-stringers as guideways and are fastened to the stringers asdescribed, and the planks are interlocked with each other by theirtongues and grooves, thus forming a sheet planking of driven concretelanks, which are supported partly by the iied of the Water'way andpartly by the wooden sup ort, thus forming an exceedingly strong planing capable of withstanding the action o f the sea and the destructivework of the teredos- Having thus described our invention we claim as newand desire to secure by Letters Patent:

A sea groin or like structure comprisingr a false work of piles andstringers, and intcrlocked reinforced concrete planks, said planks beingarranged vertically and secured to the said stringers-with their lowerends extending into the bed of the water way.

2. A sea groin or like structure comprising a false work of piles andstringers, and interlocked reinforced concrete planks of selfsustainingllength and secured to the said stringers, the upper ends` of the planksprojecting upward beyond the top of the false work.

3. A sea groin or like structure comprising a false work of piles andstringere, interlocked reinforced concrete planks of self-sustaininglength and secured. to the said stringers, the upper ends of the planksprojecting upward beyond the top of the false work, and metallicprotectors for the upper ends of the said planks.

4. A sea groin or like structure comprising a false work of piles andstringers, interlockcd reinforced concrete planks of self-sustaininglength and secured to the said stringere, the upper ends of the planksterminating in a head resting on the upper stringer, and 111etallic capsfor the corners of the said heads.

5. As a new article of manufacture a plank for sea groins and otherhydraulic structures and consisting of a body of concrete in the form ofa plank` and metal bars extending lengthwise in the said body forreinforcing the plank, one side of the body having a reinforced tongueand the other side. being provided with a reinforced groove,

6. As a new article of manufacture a plank for sea groins and otherhydraulic structures, consisting of a body of concrete In the form of aplank and having a tongue at one edge and a groove at the other, metalbars extending lengthwise of the body of the plank for reinforcing thesame, a metal plate extending lengthwise of the tongue, and a metalplate extending' lengthwise in cach wall olI theV groove.

In testimony whereof we have signed our names to this specification u1the presence of two subscrllnng witnesses.

JESSE A. llOWliANl). WILLIAM ll. DIC i'YSlG.

Witnesses:

BnLvILIJa VAN BanN'r, (imcn SnAr'rmz`

